Return is a relatively short and interesting reflection on the themes of the High Holidays in Jewish tradition. The book is organized in daily chapters (one for each of the 10 days of the Days of Awe) on one particular theme for the holidays. The chapters on humility and gratitude, in particular, remind us of the purpose of the High Holidays in Jewish tradition - to reflect honestly on our own weaknesses and strive to become better human beings.
It's not the best or most profound book I have read for the holidays, but it is well written, brief and filled with commentary from the Talmud, Mishnah, and great thinkers in Jewish history. The commentary is interwoven in the body of text, but Brown also concludes each chapter with specific commentary from Maimonides, Rabbi Moshe Haim Luzzatto, and Rabbi Abraham Isaac Kook on the theme of the chapter. Each chapter also ends with "life homework" and questions to think about while studying which I found valuable.
It's not the best or most powerful book on the High Holidays that I've read, but it is succinct and deftly covers all the main themes of the holiday in ways that are accessible to anyone. I found it to be a meaningful addition to my high holiday resources and one that can be reread every year.